320542402105 has 8 divisors (see below), whose sum is σ = 395046852552. Its totient is φ = 249503275008.

The previous prime is 320542402087. The next prime is 320542402111. The reversal of 320542402105 is 501204245023.

It can be written as a sum of positive squares in 4 ways, for example, as 146241997056 + 174300405049 = 382416^2 + 417493^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320542402105 - 2⁵ = 320542402073 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 866330632 + ... + 866331001.

It is an arithmetic number, because the mean of its divisors is an integer number (49380856569).

Almost surely, 2^320542402105 is an apocalyptic number.

It is an amenable number.

320542402105 is a deficient number, since it is larger than the sum of its proper divisors (74504450447).

320542402105 is a wasteful number, since it uses less digits than its factorization.

320542402105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732661675.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 320542402105 its reverse (501204245023), we get a palindrome (821746647128).

The spelling of 320542402105 in words is "three hundred twenty billion, five hundred forty-two million, four hundred two thousand, one hundred five".